package socket;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;
import java.nio.charset.StandardCharsets;

/*
*  聊天室的服务器2.0
*/
public class Server2 {
    /*
    * java.net,ServerSocket
    * 运行在服务器端的Server*/
    private ServerSocket serverSocket;
public Server2(){
         try {
             System.out.printf("正在启动服务器");
             serverSocket =new ServerSocket(8888);
             System.out.printf("服务器启动完毕！");
         } catch (IOException e) {
             e.printStackTrace();
         }
     }

public void Start(){

        try {
            while (true){
                for (int i = 0; i < 1; i++) {
                    System.out.println("等待客户端链接");
                    Socket socket= serverSocket.accept();
                    System.out.println("一个客户端连接上了");
                    //启动一个线程负责与该客户端交互
                    ClientHandler handler=new ClientHandler(socket);
                    Thread t=new Thread(handler);
                    t.start();
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }


    public static void main(String[] args) {
        Server2 server=new Server2();
        server.Start();
    }

    private class  ClientHandler implements Runnable{
       private Socket socket;
       private String host;

        public ClientHandler(Socket socket) {
            this.socket = socket;
            //通过socket获取远端计算机的id地址的字符串格式
            host=socket.getInetAddress().getHostAddress();
        }

        public void run() {
            try {
                InputStream in=socket.getInputStream();
                InputStreamReader isr=new InputStreamReader(in, StandardCharsets.UTF_8);
                BufferedReader br=new BufferedReader(isr);
                String message;
                while ((message=br.readLine())!=null){
                    System.out.println(host+"说："+message);
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

}
